Folder No. 5 Crossbar book

This is a digital reproduction of a book published by Bell Labs containing a number of articles from 1949 to 1951 that detail most aspects of the No. 5 Crossbar. The articles were all publised in the Bell Laboratories Record.

The entire book is 150 pages. Due to the large number of images the book is presented with each article in a separate PDF. This makes the file sizes more manageable. Scanned and converted to PDF by Sam Etler.

Documents

pdf 00-Contents Popular

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00-Contents

Western Electric No. 5 Crossbar book.  BLR reprint, 1950.  Contributed by Sam Etler.

pdf 01-Introduction Popular

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01-Introduction.pdf

01-Introduction

Western Electric No. 5 Crossbar book. BLR reprint, 1950. Contributed by Sam Etler.

pdf 02-PictoralSummary Popular

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02-PictoralSummary.pdf

02-PictoralSummary

Western Electric No. 5 Crossbar book. BLR reprint, 1950. Contributed by Sam Etler.

pdf 03-DesignPatterns Popular

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03-DesignPatterns.pdf

03-DesignPatterns

Western Electric No. 5 Crossbar book. BLR reprint, 1950. Contributed by Sam Etler.

pdf 04-TrunkingPlan Popular

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04-TrunkingPlan.pdf

04-TrunkingPlan

Western Electric No. 5 Crossbar book. BLR reprint, 1950. Contributed by Sam Etler.

pdf 05-Marker Popular

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05-Marker

Western Electric No. 5 Crossbar book. BLR reprint, 1950. Contributed by Sam Etler.

pdf 06-EquipmentArrangements Popular

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06-EquipmentArrangements.pdf

06-EquipmentArrangements

Western Electric No. 5 Crossbar book. BLR reprint, 1950. Contributed by Sam Etler.

pdf 07-Frames Popular

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07-Frames

Western Electric No. 5 Crossbar book. BLR reprint, 1950. Contributed by Sam Etler.

pdf 08-OriginatingDPRegister Popular

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08-OriginatingDPRegister.pdf

08-OriginatingDPRegister

Western Electric No. 5 Crossbar book. BLR reprint, 1950. Contributed by Sam Etler.

pdf 09-TrunkSelection Popular

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09-TrunkSelection.pdf

09-TrunkSelection

Western Electric No. 5 Crossbar book. BLR reprint, 1950. Contributed by Sam Etler.

pdf 10-TrafficDistribution Popular

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10-TrafficDistribution.pdf

10-TrafficDistribution

Western Electric No. 5 Crossbar book. BLR reprint, 1950. Contributed by Sam Etler.

pdf 11-Connectors Popular

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11-Connectors.pdf

11-Connectors

Western Electric No. 5 Crossbar book. BLR reprint, 1950. Contributed by Sam Etler.

pdf 12-Senders Popular

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12-Senders

Western Electric No. 5 Crossbar book. BLR reprint, 1950. Contributed by Sam Etler.

pdf 13-SenderLinkFrames Popular

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13-SenderLinkFrames.pdf

13-SenderLinkFrames

Western Electric No. 5 Crossbar book. BLR reprint, 1950. Contributed by Sam Etler.

pdf 14-IncomingRegisterLink Popular

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14-IncomingRegisterLink.pdf

14-IncomingRegisterLink

Western Electric No. 5 Crossbar book. BLR reprint, 1950. Contributed by Sam Etler.

pdf 15-IncomingRegisterCircuits Popular

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15-IncomingRegisterCircuits.pdf

15-IncomingRegisterCircuits

Western Electric No. 5 Crossbar book. BLR reprint, 1950. Contributed by Sam Etler.

pdf 16-RegisterAndSenderFrames Popular

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16-RegisterAndSenderFrames.pdf

16-RegisterAndSenderFrames

Western Electric No. 5 Crossbar book. BLR reprint, 1950. Contributed by Sam Etler.

pdf 17-NumberGroupFrame Popular

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17-NumberGroupFrame.pdf

17-NumberGroupFrame

Western Electric No. 5 Crossbar book. BLR reprint, 1950. Contributed by Sam Etler.

pdf 18-RingingSelection Popular

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18-RingingSelection.pdf

18-RingingSelection

Western Electric No. 5 Crossbar book. BLR reprint, 1950. Contributed by Sam Etler.

pdf 19-MessageRegisterOperation Popular

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19-MessageRegisterOperation.pdf

19-MessageRegisterOperation

Western Electric No. 5 Crossbar book. BLR reprint, 1950. Contributed by Sam Etler.

New User?

Read the articles under "Introduction" in the black menu bar above.

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Thanks for new documents from Jim Hurtle, Ed Palazzo, Paul Fassbender, Bruce Patterson, Remco Enthoven, Jon Kolger, Paul Ivester, Len Hicken, Fred Haynes, Kurt Rudolph, Wade ("Kellogg KITT"), the Connections Museum, Rick Walsh, Jeff Lamb, Jeremy Walters, Alan David, Dennis Hock, and Tim Griffin.

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